From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: PMU support on KVM Date: Thu, 17 May 2012 10:27:36 +0300 Message-ID: <20120517072736.GV32036@redhat.com> References: <1337217948.47337.YahooMailClassic@web160506.mail.bf1.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org To: Sriram Murthy Return-path: Received: from mx1.redhat.com ([209.132.183.28]:9939 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760767Ab2EQH1j (ORCPT ); Thu, 17 May 2012 03:27:39 -0400 Content-Disposition: inline In-Reply-To: <1337217948.47337.YahooMailClassic@web160506.mail.bf1.yahoo.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, May 16, 2012 at 06:25:48PM -0700, Sriram Murthy wrote: > Hi, > Can I run Intel vTune program that uses hardware events from the PMU, for profiling, on my linux VM on KVM? Also, what is the current state of PMU support for guest VMs on KVM?. No, unfortunately you can't. vTune does not honor cpuid bits correctly and uses unsupported MSRs. This should be fixed in future version of vTune though. What vTune gives you that perf does not? -- Gleb.